Check for pthread and use it if found.

* configure.in (HAVE_PTHREAD): Add check for -lpthread.
(HAVE_GTK_AND_PTHREAD): Remove.

* src/Makefile.in (LIB_PTHREAD): New variable.
(LIBES): Add LIB_PTHREAD (Bug#9216).

* src/alloc.c, src/emacs.c, src/gmalloc.c, src/gtkutil.c, src/keyboard.c, src/syssignal.h:
Rename HAVE_GTK_AND_PTHREAD to HAVE_PTHREAD (Bug#9216).

1 files changed, 4 insertions, 1 deletions

diff --git a/src/Makefile.in b/src/Makefile.in
index f68fa5c2240..af4d6df9f8f 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -130,6 +130,9 @@ START_FILES = @START_FILES@
 ## -lm, or empty.
 LIB_MATH=@LIB_MATH@
 
+## -lpthreads, or empty.
+LIB_PTHREAD=@LIB_PTHREAD@
+
 LIBTIFF=@LIBTIFF@
 LIBJPEG=@LIBJPEG@
 LIBPNG=@LIBPNG@
@@ -385,7 +388,7 @@ LIBES = $(LIBS) $(LIBX_BASE) $(LIBX_OTHER) $(LIBSOUND) \
    $(LIBXML2_LIBS) $(LIBGPM) $(LIBRESOLV) $(LIBS_SYSTEM) \
    $(LIBS_TERMCAP) $(GETLOADAVG_LIBS) $(SETTINGS_LIBS) $(LIBSELINUX_LIBS) \
    $(FREETYPE_LIBS) $(FONTCONFIG_LIBS) $(LIBOTF_LIBS) $(M17N_FLT_LIBS) \
-   $(LIBGNUTLS_LIBS) $(LIB_PTHREAD_SIGMASK) \
+   $(LIBGNUTLS_LIBS) $(LIB_PTHREAD) $(LIB_PTHREAD_SIGMASK) \
    $(LIB_GCC) $(LIB_MATH) $(LIB_STANDARD) $(LIB_GCC)
 
 all: emacs$(EXEEXT) $(OTHER_FILES)